Every trip from Indianapolis to Chicago takes me past Purdue University’s impressive wind farm. No matter how many times I drive past, it always feels like I’ve been transported into a science fiction movie. Hundreds of windmills, three hundred feet tall, dot the farmland surrounding I-65.

It’s the perfect location. The relatively small windmill base doesn’t interfere with farming. And since the land borders one of Indiana’s busiest interstates, no one complains about the noise. If you’ve never heard wind turbines in action, this will give you an idea of just how annoying they can sound…